10 L 8 SOW ATT 4 Section 211313 GSA Guide Specification Wet Pipe Sprinkler.pdf

09/08

WET-PIPE SPRINKLER SYSTEMS 211313 - 1

SECTION 211313 - WET-PIPE SPRINKLER SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Pipes, fittings, and specialties.

2. Fire-protection valves.

3. Fire-department connections.

4. Sprinklers.

5. Alarm devices.

6. Pressure gages.

7. Other fire sprinkler related appurtenances

B. Related Sections:

1. Division 1 Section “Submittal Procedures”

2. Division 7 Section “Firestopping”

3. Division 9, Section “Painting”

4. Division 21 Section "Fire-Suppression Standpipes" for standpipe piping.

5. Division 21 Section "Dry-Pipe Sprinkler Systems" for dry-pipe sprinkler piping.

6. Division 21, Section “Facility Fire Suppression Water Service Piping”

7. Division 21, Section, Electric Drive Centrifugal Fire Pump and Fire Pump Controller”

8. Division 28, Section “Digital Addressable Fire Alarm Systems”] [GSA

Addressable/Analog Fire Alarm Specification

1.3 DESCRIPTION OF WORK

A. Scope: Provide a complete wet-pipe automatic sprinkler system, and associated equipment, ready for operation.

B. Description of Work: The work includes [modifying] the layout and installation of [a new] [an existing] wet-pipe automatic sprinkler system[s] to afford complete fire protection throughout

C. Compliance: The entire wet-pipe automatic sprinkler system shall be designed in accordance with the specification. Any reference to "authority having jurisdiction" shall be interpreted to mean the GSA Regional Fire Protection Engineer. All material and equipment used shall be listed or approved by UL, FM or another nationally recognized testing agency approved by the GSA Regional Fire Protection Engineer, for their intended use and service.

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D. [Historic, Cultural or Special Architectural Considerations

1. The following areas require [concealed] [ ] sprinklers: [courtrooms] [ ]].

1.4 PERFORMANCE REQUIREMENTS

A. General: Design automatic sprinkler systems in accordance with all required and advisory provisions of NFPA 13, including all the Annexes, except where modified herein, by hydraulic calculations for [light][ordinary][extra] hazard occupancy with uniform water distribution over the design area. Each system shall be designed using the area/density design approach as defined by NFPA 13. The room design method shall not be used. Design and provide each system to give full consideration to blind spaces, piping, electrical equipment, ducts and other construction and equipment in accordance with detailed working drawings to be submitted for approval. [Design systems for earthquake protection]

1. General Design Area Sizes and Densities

a. Provide the appropriate sprinkler design density based on the occupancy hazard or commodity classification of the space being protected in accordance with NFPA 13.

b. The discharge area shall be the hydraulically most demanding 1,500 sq ft except as specifically noted below. There shall be no reduction in area for the use of quick response sprinklers.

2. Specific Design Area Sizes and Densities

a. Storage Rooms in excess of 1,500 sq. ft. [140 sq. m.] shall be sprinkler protected in accordance to NFPA 13 Ordinary Hazard Group II.

b. Loading Docks shall be sprinkler protected in accordance to NFPA 13 Ordinary Hazard Group II.

c. Trash collection rooms shall be sprinkler protected in accordance to NFPA 13 Ordinary Hazard Group II.

d. Kitchens shall be sprinkler protected in accordance to NFPA 13 Ordinary Hazard Group I.

e. Archives shall be sprinkler protected at a density of .30 gpm/sq. ft. [12.2 l/sq. m.] over the most hydraulically remote 1,500 sq. ft. [140 sq. m.] with ordinary temperature rated sprinkler protected. Each sprinkler shall cover no more than 100

sq. ft. [9.3 sq. m.]

f. Chemical Laboratories shall be sprinkler protected at a density of .15 gpm/sq. ft.

[6.1 l/sq. m.] over the most hydraulically remote 3,000 sq. ft. [280 sq. m.]

g. Compact Mobile Shelving, Track file system storage shall be sprinkler protected at a density of .30 gpm/sq. ft. [12.2 l/ sq. m.] over the most hydraulically remote 1,500 sq. ft. [140 sq. m.] Each sprinkler shall cover no more than 100 sq. ft. [9.3

sq. m.]

B. Total Combined Inside & Outside Hose Allowances: Hydraulic calculations shall include an allowance of [250 gpm [946 lpm]][500 gpm][1893 lpm] for hose streams, added at the point of connection to the water supply.

C. Water Supply Information

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1. Available fire-hydrant flow test records indicate the following conditions:

a. Date: <Insert test date>.

b. Time: <Insert time> [a.m.] [p.m.]

c. Performed by: <Insert operator's name> of <Insert firm>.

d. Location of Residual Fire Hydrant: <Insert location>.

e. Location of Flow Fire Hydrant: <Insert location>.

f. Static Pressure at Residual Fire Hydrant: <Insert psig (kPa)>.

g. Measured Flow at Flow Fire Hydrant: <Insert gpm (L/s)>.

h. Residual Pressure at Residual Fire Hydrant: <Insert psig (kPa)>.

2. [Fire pump test records indicate the following conditions:

a. Date: <Insert test date>.

b. Time: <Insert time> [a.m.] [p.m.]

c. Performed by: <Insert operator's name> of <Insert firm>.

d. Static Pressure at Fire Pump: <Insert psig (kPa)>.

e. Measured Flow at Fire Pump: <Insert gpm (L/m)>.

f. Residual Pressure at Fire Pump: <Insert psig (kPa)>.]

D. Sprinkler System Layout: Approved by GSA Regional Fire Protection Engineer.

E. Other Design Criteria:

1. Margin of Safety for Available Water Flow and Pressure: 10 percent, including losses through water-service piping, valves, and backflow preventers.

2. Maximum protection area per sprinkler shall be per NFPA 13 unless noted otherwise.

3. Velocities in all piping shall not exceed 20 ft/sec (6.1 m/sec). [Velocities in standpipes must be calculated based on the combined sprinkler flow.]

4. Interior pipe coatings are specifically prohibited where not listed for fire protection use.

5. Total Combined Hose-Stream Demand Requirement shall be according to NFPA 13.

6. [For SCIF rooms:

a. Use dielectric fittings to isolate SCIF room sprinkler pipe from rest of sprinkler system.

b. Isolate hangers from building structure.]

7. [For Information Technology Equipment spaces:

a. Provide a separate control valve, waterflow switch and tamper switch.

b. Use concealed sprinklers.

c. Provide a separate test connection.]

8. [For Detention/Holding Areas:

a. Use metallic link, “institutional” type sprinklers.]

9. [For Open office space:

a. Extended coverage sprinklers shall not be used.]

10. [For areas subject to temperatures below 40 degrees F::

a. Provide dry pendent or dry sidewall sprinklers.

b. Anti-Freeze systems shall not be installed.

c. Heat Tape systems shall not be installed.]

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F. Seismic Performance: Sprinkler piping shall withstand the effects of earthquake motions determined according to NFPA 13.

1. Seismic Expansion Joints: Provide flexible piping systems of a length that exceeds the maximum design movement of seismic expansion joints. The use of 90 degree fittings in pipe as shown in NFPA 13 is specifically prohibited.

1.5 SUBMITTALS

A. Submittals to be in accordance with Division 1, Submittal Procedures unless otherwise indicated by this section.

B. Product Data: Submit six (6) bound sets of submittals to the [Contracting Officer][Project Manager] for each type of product indicated. Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories. Partial submittals will not be acceptable and will be returned without review. Before any work is commenced, the submittal must be approved by the GSA Regional Fire Protection Engineer. Manufacturer's data shall be provided for all products listed in Part 2 of this specification and annotated to show the specific model, type and size of each item:

C. Shop Drawings: For wet-pipe sprinkler systems, submit six (6) set of drawings to the [Contracting Officer][Project Manager] that include all information as required by NFPA 13.

The drawings shall be prepared on uniform sized sheets not less than 30 in by 42 in (760 by 1070 mm). Partial submittals will not be acceptable and will be returned without review. Before any work is commenced, the submittal must be approved by the GSA Regional Fire Protection Engineer. Include plans, elevations, sections, details, isometric diagram of sprinkler system riser piping showing all control valve locations, and attachments to other work.

1. Layout indicating details, plan view, elevations and sections of the system piping. Indicate the location of sprinklers and piping in relation to the ceiling layout, showing pipe lengths and sizes.

2. Detailed riser diagram including isometric diagrams showing schematic of systems supply, supply connection, devices, valves, pipe and fittings.

3. [Provide three (3) sets of CAD based electronic shop drawings to the [Contracting Officer][Project Manager]; each set shall include DWG and DWF file formats, including all associated externally referenced electronic files (Xref’s). These files shall contain externally referenced files that have been inserted (do not bind the Xref’s).

Provide both DWG and DWF file formats on three (3) separate recordable CD-R’s (do not use CD-RW’s or DVD-R/RW’s). In addition, provide in each set a read only PDF copy of each As-Built drawing for archiving purposes. PDF files shall be created using the PDF Creator utility. These three (3) CD-R’s shall be formatted, written to, and the recording session closed in such a manner as to prevent additional electronic file transfers to the recordable CD-R’s.]

D. Hydraulic Calculations. Submit name of hydraulic program and comply with the following:

1. Where a single riser supplies water to more than one floor or level, separate calculations shall be performed for the hydraulically most demanding area of each floor or level served.

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2. Minimum operating pressure of any sprinkler shall be according to NFPA 13 and appropriate UL listing or FM approval.

E. Verification of Qualification. Prior to installation, submit documentation, to the [Contracting Officer][Project Manager, showing that the Contractor has successfully installed automatic fire suppression sprinkler systems of comparable size, type and design as specified herein or that the Contractor has a firm contractual agreement with a Subcontractor having such experience.

1. The data shall include the names and locations of at least three installations where the

Contractor, or Subcontractor, installed such systems.

2. The Contractor, or Subcontractor, shall certify that each system has performed satisfactorily for a period of not less than one year.

3. The Contractor of Subcontract shall submit the NICET/PE certification/license number and expiration date.

F. As Built Drawings:

1. General: Prepare and submit to the [Contractor Office] [Project Manager] six (6) sets of detailed "As-Built Drawings". The drawings shall show the system as installed, including all deviations from both the project drawings and the approved shop drawings.

The drawings shall also include all information as required by NFPA 13. The drawings shall be prepared on uniform sized sheets not less than 30 in by 42 in (760 by 1070 mm).

Submit these drawings within two weeks after the final acceptance test of the system.

2. [Provide three (3) sets of CAD based electronic as-built drawings to the [Contractor Office] [Project Manager]; each set shall include DWG and DWF file formats, including all associated externally referenced electronic files (Xref’s). These files shall contain externally referenced files that have been inserted (do not bind the Xref’s). Provide both DWG and DWF file formats on three (3) separate recordable CD-R’s (do not use CD-RW’s or DVD-R/RW’s). In addition, provide in each set a read only PDF copy of each As-Built drawing for archiving purposes. PDF files shall be created using the PDF Creator utility. These three (3) CD-R’s shall be formatted, written to, and the recording session closed in such a manner as to prevent additional electronic file transfers to the recordable CD-R’s.]

G. Field Test Reports and Certificates: Submit test certification, to the [Contracting Officer][Project Manager], for all pipe and fittings. Indicate and interpret test results for compliance with performance requirements and as described in NFPA 13. Include "Contractor's Material and Test Certificate for Aboveground Piping."

H. Operation and Maintenance Data: Not less than [ ] calendar days prior to the final acceptance testing of the entire system, and for use during the instruction period hereinafter specified, provide six (6) bound copies of an Operation and Maintenance Manual to the [Contracting Officer][Project Manager]. The manual shall include an index, copies of all approved shop drawings and submittal materials (updated to as-built), and a complete parts list of all components. The manual shall also include, for each item, the manufacturer's name, the serial number of the part, an ordering number, if appropriate, and a physical description of the part.

The manual shall include all data relative to alarm valves, waterflow switches and tamper switches.

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1.6 QUALITY ASSURANCE

A. Qualifications:

1. Layout and hydraulic calculation shall be performed by a NICET Level III or IV Technician certified in Automatic Sprinkler Systems Layout or a Registered Fire Protection Engineer.

2. Installation shall be performed by a licensed sprinkler contractor who is experienced in the layout and installation of automatic sprinkler systems (minimum 3 years) of comparable size and type.

3. Installer's responsibilities include layout, fabrication, and installation of sprinkler systems.

Layout calculations shall be based on the [fire-hydrant flow] [fire pump] test data provided.

4. Drawings shall be sealed by a licensed Professional Fire Protection Engineer or be stamped by a NICET Level III or IV Technician certified in Automatic Sprinkler Systems Layout.

B. Applicable References: Sprinkler system equipment, specialties, accessories, installation, and testing shall comply with the latest editions of the following codes and standards:

1. National Fire Protection Association (NFPA), including all amendments and annexes

a. NFPA 13, "Installation of Sprinkler Systems."

b. [NFPA 14, “Standpipe and Hose Systems”]

2. Underwriter’s Laboratories (UL)

a. “Fire Protection Equipment Directory"

3. Factory Mutual Global (FM)

a. Approval Guide

b. [Property Loss Prevention Data Sheet 2-2, “Installation Rules For

Suppression Mode Automatic Sprinklers”]

4. American Standard for Testing Materials (ASTM)

a. ASTM A53/A53M, “Standard Specification for Pipe, Steel, Black and Hot-

Dipped, Zinc-Coated, Welded and Seamless”

b. ASTM A47/A47M, “Standard Specification for Ferritic Malleable Iron Castings”

c. ASTM A153, “Standard Specification for Zinc Coating (Hot-Dip) on Iron and

Steel Hardware”

d. ASTM A234/A234M, “Standard Specification for Piping Fittings of Wrought

Carbon Steel and Alloy Steel for Moderate and High Temperature Service”

e. ASTM A536, “Standard Specification for Ductile Iron Castings”

f. ASTM A733, “Standard Specification for Welded and Seamless Carbon Steel and

Austenitic Stainless Steel Pipe Nipples”

g. ASTM A795, “Standard Specification for Black and Hot-Dipped Zinc-Coated

(Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use”

h. ASTM A865, “Standard Specification for Threaded Couplings, Steel, Black or

Zinc-Coated (Galvanized) Welded or Seamless, for Use in Steel Pipe Joints”

i. ASTM B75/B75M, “Standard Specification for Seamless Copper Tube”

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j. ASTM B88, “Standard Specification for Seamless Copper Water Tube”

k. ASTM B584, “Standard Specification for Copper Alloy Sand Castings for General

Applications”

l. ASTM B633, “Standard Specification for Electrodeposited Coatings of Zinc on

Iron and Steel”

m. ASTM F2014, “Standard Specification for Non-Reinforced Extruded Tee

Connections for Piping Applications”

5. American Water Works Association (AWWA)

a. AWWA C110, “Standard for Ductile Iron and Gray Iron Fittings for Water”

b. AWWA C606, “Standard for Grooved and Shouldered Joints”

6. American Society of Mechanical Engineers (ASME)

a. ASME B1.20.1, “Pipe Threads, General Purpose”

b. ASME B16.1, “Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and

250”

c. ASME B16.3, “Malleable Iron Threaded Fittings”

d. ASME B16.4, “Gray Iron Threaded Fittings”

e. ASME B16.5, “Pipe Flanges and Flanged Fittings: NPS 1/2 through 24”

f. ASME B16.9, “Factory-Made Wrought Buttwelding Fittings”

g. ASME B16.21, “Nonmetallic Flat Gaskets for Pipe Flanges”

h. ASME B16.22, “Wrought Copper and Copper Alloy Solder Joint Pressure

Fittings”

i. ASME B16.24, “Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes

150, 300, 600, 900, 1500 and 2500”

j. ASME B18.2.1, “Square and Hex Bolts and Screws, Inch Series”

7. American Welding Society (AWS)

a. A5.8, “Specification for Filler Metals for Brazing and Braze Welding”

b. D10.12/D10.12M, “Guide for Welding Mild Steel Pipe”

8. Manufacturer’s Standardization Society (MSS)

a. SP-123, “Non-Ferrous Threaded and Solder-Joint Unions for Use With Copper

Water Tube”

9. Copper Development Association (CDA)

a. Copper Tube Handbook

10. Federal Specifications

a. TT-P-636

11. [International Code Council (ICC)

a. International Building Code (IBC)]

C. Guarantee. The Contractor shall guarantee labor, materials, and equipment provided under this contract against defects for a period of one year after the date of final acceptance of this work by the Government. Final Acceptance includes, but is not limited to, the receipt of as-built drawings and operation and maintenance manuals Contractor shall be able to provide qualified personnel to site within a two (2) hour time frame and be available 24 hours a day, 7 days a week.

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D. Conflicts. The system shall be installed in accordance with the drawings, specifications and referenced publications. Any conflicts between these documents shall be brought to the attention of the the [Contracting Officer’s Representative] [Project Manager], and the GSA Regional Fire Protection Engineer.

1.7 PROJECT CONDITIONS

A. Interruption of Existing Sprinkler Service: Do not interrupt sprinkler service to facilities without prior approval of the GSA Regional Fire Protection Engineer and the facility’s Senior Property Manager:

1. Existing Sprinkler Equipment: Existing sprinkler equipment shall be [maintained fully operational until the new equipment has been tested and accepted by the Government] [left in-service] [re-piped] [removed] as indicated in the contract drawings

2. When sprinkler interruption is necessary, a written plan for putting the system back into service shall be submitted to the GSA Regional Fire Protection Engineer and the facility’s Senior Property Manager.

3. [Equipment Removal: After acceptance of the new system by the Government, all existing equipment so indicated shall be removed and all damaged surfaces shall be restored as herein specified.]

1.8 COORDINATION

A. Coordinate layout and installation of sprinklers with other construction that penetrates ceilings, including light fixtures, HVAC equipment, and partition assemblies.

B. Sprinklers shall be located in center of ceiling tile in all acoustical tile drop ceilings.

PART 2 - PRODUCTS

2.1 All products shall be UL listed or FM approved for Fire Protection Service unless specifically allowed otherwise by this specification.

2.2 PIPING MATERIALS

A. Materials shall be steel, ductile iron, or copper.

2.3 STEEL PIPE AND FITTINGS

A. Schedule 40, Black-Steel Pipe: ASTM A795, in NPS 2 in (DN 50) and smaller. Pipe ends may be factory or field formed to match joining method.

B. Schedule 10, Black-Steel Pipe: ASTM A795, Schedule 10 in pipe greater than NPS 2 in (DN 50). Pipe ends may be factory or field formed to match joining method.

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C. Black-Steel Pipe Nipples: ASTM A733, made of ASTM A795, Schedule 40 steel pipe with threaded ends.

D. Steel Couplings: ASTM A865, threaded.

E. Gray-Iron Threaded Fittings: ASME B16.4, Class 125, standard pattern.

F. Malleable- or Ductile-Iron Unions: UL listed.

G. Cast-Iron Flanges: ASME 16.1, Class 125.

H. Steel Flanges and Flanged Fittings: ASME B16.5, Class 150.

I. Steel Welding Fittings: ASTM A234/A234M and ASME B16.9.

J. Malleable Iron Fittings: ASMT B16.3, Class 150

K. Grooved-Joint, Steel-Pipe Appurtenances:

1. Pressure Rating: [175 psig (1200 kPa)] [250 psig (1725 kPa)] [300 psig (2070 kPa)] minimum.

2. Grooved-End Fittings for Steel Piping: ASTM A47/A47M, malleable-iron casting or ASTM A536, ductile-iron casting; with dimensions matching steel pipe.

3. Grooved-End-Pipe Couplings for Steel Piping: AWWA C606 rigid pattern, unless otherwise indicated by this specification, for steel-pipe dimensions. Include ferrous housing sections, EPDM-rubber gasket, and bolts and nuts.

2.4 COPPER TUBE AND FITTINGS

A. Hard Copper Tube: ASTM B88, Type K drawn copper.

B. Wrought-Copper, Solder-Joint Fittings: ASME B16.22, pressure fittings.

C. Bronze Flanges: ASME B16.24, Class 150, with solder-joint ends.

D. Copper Unions: MSS SP-123, cast-copper-alloy, hexagonal-stock body, with ball-and-socket, metal-to-metal seating surfaces, and solder-joint or threaded ends.

E. Grooved-Joint, Copper-Tube Appurtenances:

1. Grooved-End, Copper Fittings: ASTM B75 (ASTM B75M), copper tube or ASTM B584, bronze castings.

2. Grooved-End-Tube Couplings: To fit copper-tube dimensions, with design similar to AWWA C606. Include ferrous housing sections, EPDM-rubber gasket suitable for fire protection service, and bolts and nuts.

F. Copper-Tube, Extruded-Tee Connections:

1. Description: Tee formed in copper tube according to ASTM F2014.

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2.5 PIPING JOINING MATERIALS

A. Pipe-Flange Gasket Materials: [AWWA C110, rubber, flat face, 1/8 inch (3.2 mm) thick] [ASME B16.21, nonmetallic and asbestos free].

1. Class 125, Cast-Iron Flanges and Class 150, Bronze Flat-Face Flanges: Full-face gaskets.

2. Class 250, Cast-Iron Flanges and Class 300, Steel Raised-Face Flanges: Ring-type gaskets.

B. Metal, Pipe-Flange Bolts and Nuts: ASME B18.2.1, carbon steel unless otherwise indicated by this specification.

C. Brazing Filler Metals: AWS A5.8/A5.8M, BCuP Series, copper-phosphorus alloys for general-duty brazing unless otherwise indicated by this specification.

D. Welding Filler Metals: Comply with AWS D10.12M/D10.12 for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded.

2.6 VALVES

A. General Requirements:

1. Minimum Pressure Rating for Standard-Pressure Piping: 175 psig (1200 kPa).

B. Ball Valves:

1. Standard: UL listed, except with ball instead of disc.

2. Valves NPS 1-1/2 (DN 40) and Smaller: Bronze body with threaded ends.

3. Valves NPS 2 and NPS 2-1/2 (DN 50 and DN 65): Bronze body with threaded ends or ductile-iron body with grooved ends.

4. Valves NPS 3 (DN 80): Ductile-iron body with grooved ends.

C. Bronze Butterfly Valves:

1. Pressure Rating: 175 psig (1200 kPa).

2. Body Material: Bronze.

3. End Connections: Threaded.

D. Iron Butterfly Valves:

1. Pressure Rating: 175 psig (1200 kPa).

2. Body Material: Cast or ductile iron.

3. Style: Lug or wafer.

4. End Connections: Grooved.

E. Check Valves:

1. Pressure Rating: [250 psig (1725 kPa) minimum] [300 psig (2070 kPa)].

2. Type: Swing check.

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3. Body Material: 2-1/2 (DN 65) inches or more: Cast iron.

4. Body Material: 2 inches or less (DN 50): Bronze with screw ends

5. End Connections: Flanged or grooved.

F. Bronze OS&Y Gate Valves:

1. Pressure Rating: 175 psig (1200 kPa).

2. Body Material: Bronze.

3. End Connections: Threaded.

G. Iron OS&Y Gate Valves:

1. Pressure Rating: [250 psig (1725 kPa) minimum] [300 psig (2070 kPa)].

2. Body Material: Cast or ductile iron.

3. End Connections: Flanged or grooved.

H. Indicating-Type Butterfly Valves:

1. Pressure Rating: 175 psig (1200 kPa) minimum.

2. Valves NPS 2 (DN 50) and Smaller:

a. Valve Type: Ball or butterfly.

b. Body Material: Bronze.

c. End Connections: Threaded.

3. Valves NPS 2-1/2 (DN 65) and Larger:

a. Valve Type: Butterfly.

b. Body Material: Cast or ductile iron.

c. End Connections: Flanged, grooved, or wafer.

4. Valve Operation: Integral [electrical, 115-V ac, prewired, two-circuit, supervisory switch] visual indicating device.

I. Indicator Posts:

1. Type: Horizontal for wall mounting.

2. Body Material: Cast iron with extension rod and locking device.

3. Operation: [Wrench] [Hand wheel].

2.7 TRIM AND DRAIN VALVES

A. General Requirements:

1. Pressure Rating: 175 psig (1200 kPa) minimum.

B. Provide Angle Valves, Ball Valves, Globe Valves, Plug Valves

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2.8 SPECIALTY VALVES

A. General Requirements:

1. Pressure Rating:

a. Standard-Pressure Piping Specialty Valves: 175 psig (1200 kPa) minimum.

b. High-Pressure Piping Specialty Valves: [250 psig (1725 kPa) minimum] [300 psig (2070 kPa)].

2. Body Material: Cast or ductile iron.

3. Size: Same as connected piping.

4. End Connections: Flanged or grooved.

B. Alarm Valves:

1. Design: For horizontal or vertical installation.

2. Include trim sets for bypass, drain, electrical sprinkler alarm switch, pressure gages,[retarding chamber,] and fill-line attachment with strainer.

3. Drip Cup Assembly: Pipe drain with check valve to main drain piping.

C. [Automatic (Ball Drip) Drain Valves:

1. Pressure Rating: 175 psig (1200 kPa) minimum.

2. Type: Automatic draining, ball check.

3. Size: NPS ¾ (DN 20).

4. End Connections: Threaded.]

D. [Pressure Reducing Valves:

2.9 FIRE-DEPARTMENT CONNECTIONS

A. Exposed-Type, Fire-Department Connection:

1. Type: Exposed, projecting, for wall mounting.

2. Pressure Rating: 175 psig (1200 kPa) minimum.

3. Body Material: Corrosion-resistant metal.

4. Inlets: Brass with threads according to local fire-department sizes and threads. Include extension pipe nipples, brass lugged swivel connections, and check devices or clappers.

5. Caps: Brass, lugged type, with gasket and chain or plastic.

6. Escutcheon Plate: Round, brass, wall type.

7. Outlet: Back, with pipe threads.

8. Number of Inlets: [Two] [Three][Four] [Six].

9. Escutcheon Plate Marking: Similar to “[AUTO SPKR & STANDPIPE] [AUTO

SPKR].”

10. Finish: [Polished chrome plated] [Rough brass or bronze] [Rough chrome plated].

11. Outlet Size: [NPS 4 (DN 100)] [NPS 5 (DN 125)] [NPS 6 (DN 150)].

B. Flush-Type, Fire-Department Connection:

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1. Type: Flush, for wall mounting.

2. Pressure Rating: 175 psig (1200 kPa) minimum.

3. Body Material: Corrosion-resistant metal.

4. Inlets: Brass with threads according to local fire-department sizes and threads. Include extension pipe nipples, brass lugged swivel connections, and check devices or clappers.

5. Caps: Brass, lugged type, with gasket and chain or plastic.

6. Escutcheon Plate: Rectangular, brass, wall type.

7. Outlet: With pipe threads.

8. Body Style: [Horizontal] [Square] [Vertical].

9. Number of Inlets: [Two] [Three] [Four] [Six].

10. Outlet Location: [Back] [Bottom] [Left side] [Right side] [Top].

11. Escutcheon Plate Marking: Similar to “[AUTO SPKR & STANDPIPE] [AUTO

SPKR].”

12. Finish: [Polished chrome plated] [Rough brass or bronze] [Rough chrome plated].

13. Outlet Size: [NPS 4 (DN 100)] [NPS 5 (DN 125)] [NPS 6 (DN 150)] [NPS 8 (DN 200)].

C. Yard-Type, Fire-Department Connection:

1. Type: Exposed, freestanding.

2. Pressure Rating: [175 psig (1200 kPa) minimum] [300 psig (2070 kPa)].

3. Body Material: Corrosion-resistant metal.

4. Inlets: Brass with threads according to local fire-department sizes and threads. Include extension pipe nipples, brass lugged swivel connections, and check devices or clappers.

5. Caps: Brass, lugged type, with gasket and chain or plastic.

6. Escutcheon Plate: Round, brass, floor type.

7. Outlet: Bottom, with pipe threads.

8. Number of Inlets: [Two] [Three] [Four][Six]..

9. Sleeve: [Brass] [Not required].

10. Sleeve Height: 18 inches (460 mm).

11. Escutcheon Plate Marking: Similar to “[AUTO SPKR & STANDPIPE] [AUTO

SPKR].”

12. Finish[,Including Sleeve]: [Polished chrome plated] [Rough brass or bronze] [Rough chrome plated].

13. Outlet Size: [NPS 4 (DN 100)] [NPS 5 (DN 125)] [NPS 6 (DN 150)].

2.10 SPRINKLER SPECIALTY PIPE FITTINGS

A. Branch Outlet Fittings:

1. Use welded, threaded or grooved outlets only.

2. Mechanical fastened tees are not permitted.

3. Where welded outlets are used, cutouts shall be fastened to the pipe from which they are cut.

B. Flow Detection and Test Assemblies:

1. Pressure Rating: [175 psig (1200 kPa) minimum] [300 psig (2070 kPa)].

2. Body Material: Cast- or ductile-iron housing with orifice, sight glass, and integral test valve.

WET-PIPE SPRINKLER SYSTEMS 211313 - 14

3. Size: Same as connected piping.

4. Inlet and Outlet: Threaded.

C. Sprinkler Inspector’s Test Fittings:

1. Pressure Rating: [175 psig (1200 kPa) minimum] [300 psig (2070 kPa)].

2. Body Material: Cast- or ductile-iron housing with sight glass.

3. Size: Same as connected piping.

4. Inlet and Outlet: Threaded.

2.11 SPRINKLERS

A. General Requirements:

1. Pressure Rating for Automatic Sprinklers: 175 psig (1200 kPa) minimum.

2. Pressure Rating for High-Pressure Automatic Sprinklers: [250 psig (1725 kPa) minimum] [300 psig (2070 kPa)].

3. Sprinklers with O-rings are not permitted.

B. Automatic Sprinklers with Heat-Responsive Element:

1. Early-Suppression, Fast-Response Applications: [FM Global Loss Prevention Data Sheet 2-2].

2. Characteristics: Nominal ½-inch (12.7-mm) orifice with Discharge Coefficient K of 5.6, and 8.0 for “Ordinary” temperature classification rating unless otherwise indicated by this specification or required by application.

3. Provide ½ inch NPS thread for K5.6 and ¾ inch NPS thread for K8.0.

C. Sprinkler Finishes:

1. Chrome plated.

2. Bronze.

3. Painted.

D. Special Coatings:

1. Corrosion resistant coating.

E. Sprinkler Escutcheons: Materials, types, and finishes for the following sprinkler mounting applications. Escutcheons for concealed, flush, and recessed-type sprinklers are specified with sprinklers.

1. Ceiling Mounting: [Chrome-plated steel, one piece, flat] [Chrome-plated steel, two piece, with 1-inch (25-mm) vertical adjustment] [Plastic, white finish, one piece, flat].

2. Sidewall Mounting: [Chrome-plated steel] [Plastic, white finish], one piece, flat.

F. Sprinkler Guards:

1. Type: Wire cage with fastening device for attaching to sprinkler.

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2.12 ALARM DEVICES

A. Water-Flow Indicators:

1. Water-Flow Detector: Electrically supervised.

2. Components: Two double-throw circuit switches for isolated alarm and auxiliary contacts, complete with factory-set, field-adjustable retard element to prevent false signals and tamperproof cover that sends signal if removed.

3. Type: Paddle operated with screw terminals.

4. Pressure Rating: 250 psig (1725 kPa).

5. Design Installation: Horizontal or vertical.

6. Time Delay Feature: from 0 to [30][45] seconds

B. Valve Supervisory Switches:

1. Type: Electrically supervised with screw terminals.

2. Components: Double-pole, double-throw switch with normally closed contacts.

3. Design: Signals that control valve is in other than fully open position.

C. Indicator-Post Supervisory Switches:

1. Type: Electrically supervised with screw terminals.

2. Components: Double-throw switch with normally closed contacts.

3. Design: Signals that controlled indicator-post valve is in other than fully open position.

2.13 PRESSURE GAGES

A. Type: Liquid filled

B. Dial Size: 4-1/2-inch (90- to 115-mm) diameter.

C. Pressure Gage Range: [0 to 250 psig (0 to 1725 kPa) minimum] [0 to 300 psig (0 to 2070 kPa)].

D. Water System Piping Gage: Include “WATER” or “AIR/WATER” label on dial face.

2.14 PIPE ESCUTCHEONS

A. General: Manufactured ceiling, floor, and wall escutcheons and floor plates.

B. One-Piece, Cast-Brass Escutcheons: [Polished chrome-plated] [or] [rough-brass] finish with set-screws.

C. One-Piece, Deep-Pattern Escutcheons: Deep-drawn, box-shaped brass with chrome-plated finish.

D. One-Piece, Stamped-Steel Escutcheons: Chrome-plated finish with [set-screw] [or] [spring clips].

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E. Split-Casting, Cast-Brass Escutcheons: [Polished chrome-plated] [or] [rough-brass] finish with concealed hinge and set-screw.

F. Split-Plate, Stamped-Steel Escutcheons: Chrome-plated finish with [concealed] [exposed-rivet] hinge, [set-screw] [or] [spring clips].

G. One-Piece Floor Plates: Cast-iron flange [with holes for fasteners].

H. Split-Casting Floor Plates: Cast brass with concealed hinge.

2.15 SLEEVES

A. Steel-Pipe Sleeves: ASTM A53/A53M, Type E, standard weight, plain ends.

2.16 HANGERS

A Materials available by product type. Provide materials to comply with location and application requirements unless noted otherwise on drawings and schedules.

1. Pipe rings - Malleable iron, carbon steel.

2. Clevis - Carbon steel.

3. Steel pipe clamps - Carbon steel, alloy, stainless steel.

4. Socket clamps - Carbon steel.

5. Beam clamps - Malleable/ductile iron, hardened steel, carbon steel, forged steel.

6. Structural attachments - Carbon steel, malleable iron.

7. Ceiling plates/ceiling flanges - Plastic, cast iron, malleable iron.

8. Concrete inserts and attachments – Malleable iron, carbon steel; stainless steel body, fiberglass bars, polypropylene disc (iron cross design).

9. Rod attachments - Carbon steel, malleable iron, forged steel.

10. Pipe supports - Carbon steel, cast iron.

11. Pipe shields and saddles - Carbon steel, alloy steel, stainless steel.

12. Pipe rolls - Cast iron, carbon steel.

13. Guides - Carbon steel; slides, carbon steel with PTFE slide plates.

14. Engineered hangers - Carbon steel, stainless steel, chrome molybdenum steel.

15. Powder driven studs – Not permitted

B. Finishes: Provide finishes to comply with location and application requirements unless noted otherwise on drawings and schedules.

1. Electro-plating galvanizing process per ASTM B633.

2. Hot Dipped galvanizing process per ASTM A153.

3. Epoxy paint.

4. Zinc-rich paint.

5. Copper

6. Standard primer shall meet Fed Spec TT-P-636.

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2.17 SIGNAGE

A. Provide [plastic], [steel] or [aluminum ]signs for each valve and to identify hydraulic design.

Signs shall have white lettering on a red background with holes for easy attachment. Enter pertinent data for each system on the hydraulic placard.

2.18 SPRINKLER CABINET

A. Provide metal cabinet(s) as required containing a stock of spare sprinkler heads of all types and ratings installed as well as any special tools required for removal or replacement of the heads.

The number of spare sprinklers shall conform to NFPA 13. The cabinet shall be located, in an area where the temperature will not exceed 100 degrees F (38 degrees C), and approved by the GSA Regional Fire Protection Engineer.

PART 3 - EXECUTION

3.1 WATER-SUPPLY CONNECTIONS

A. Install shutoff valve, backflow preventer, pressure gage, drain, and other accessories indicated at connection to water-distribution piping.

B. Install shutoff valve, check valve, pressure gage, and drain at connection to water supply.

3.2 PIPING INSTALLATION

A. Locations and Arrangements: Drawing plans, schematics, and diagrams indicate general location and arrangement of piping. Install piping as indicated, as far as practical.

1. Deviations from approved working plans for piping require written approval from authorities having jurisdiction. File written approval with GSA Regional Fire Protection Engineer before deviating from approved working plans.

B. Where required to be protected against damage from earthquakes, install seismic restraints on piping in accordance with NFPA 13.

C. Use listed fittings to make changes in direction, branch takeoffs from mains, and reductions in pipe sizes. Reductions in pipe sizes shall be made with tapered fittings, bushings shall not be permitted.

D. Install hangers and supports for sprinkler system piping according to NFPA 13. Comply with requirements for hanger materials in NFPA 13. Trapeze type supports shall utilize angle iron.

Use of pipe for trapeze supports is prohibited.

E. Install pressure gages on riser or feed main, at each sprinkler test connection, and at top of each standpipe. Include pressure gages with connection not less than NPS 1/4 (DN 8) and with soft metal seated globe valve, arranged for draining pipe between gage and valve. Install gages to permit removal, and install where they will not be subject to temperatures below 40 degrees F.

Install pressure gages on both sides of every pressure reducing valve.

WET-PIPE SPRINKLER SYSTEMS 211313 - 18

F. Provide a check valve at the connection to the system riser(s) at each floor connection.

3.3 JOINT CONSTRUCTION

A. Install couplings, flanges, flanged fittings, unions, nipples, transition and special fittings that have finish and pressure ratings same as or higher than system's pressure rating for aboveground applications unless otherwise indicated by this specification.

B. Install flanges, flange adapters, or couplings for grooved-end piping on valves, apparatus, and equipment having NPS 2-1/2 (DN 65) and larger end connections.

C. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

D. Remove scale, slag, dirt, and debris from inside and outside of pipes, tubes, and fittings before assembly.

E. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows:

1. Apply appropriate tape or thread compound to external pipe threads.

2. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged.

F. Welded Joints: Construct joints according to AWS D10.12M/D10.12, using qualified processes and welding operators according to the requirements and recommendations of NFPA 13.

1. Shop weld pipe joints where welded piping is indicated. Do not weld to galvanized-steel pipe.

2. Affix cutout disks, which are created by cutting holes in the walls of pipe for flow switches and non-threaded pipe connections to the respective waterflow switch or pipe connection near to the pipe from where they were cut.

G. Steel-Piping, Roll-Grooved Joints: Roll rounded-edge groove in end of pipe according to AWWA C606. Assemble coupling with housing, gasket, lubricant, and bolts. Join steel pipe and grooved-end fittings according to AWWA C606 for steel-pipe grooved joints.

H. Brazed Joints: Join copper tube and fittings according to CDA's "Copper Tube Handbook," "Brazed Joints" Chapter.

I. Copper-Tubing Grooved Joints: Roll rounded-edge groove in end of tube according to AWWA C606. Assemble coupling with housing, gasket, lubricant, and bolts. Join copper tube and grooved-end fittings according to AWWA C606 for steel-pipe grooved joints.

J. Dissimilar-Material Piping Joints: Make joints using adapters compatible with materials of both piping systems.

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3.4 VALVE AND ALARM DEVICE INSTALLATION

A. Install water flow indicators and valve supervisory devices in accordance with Division 28, GSA Address/Analog Fire Alarm specification.

B. All valves shall be electronically supervised.

C. Valves must be accessible from floor level, and shall not be installed above ceilings.

D. Where valves are installed above 6 ft. (2 m.) install chain drives.

E. Operation of valve supervisory device shall generate a supervisory signal upon no more than two complete turns of the valve wheel or a closure of 20 percent, whichever is less.

F. For OS& valves, provide a roll cut “U” groove in the valve stem the same size as the supervisory switch shaft.

3.5 SPRINKLER INSTALLATION

A. Temperature Rating: Install ordinary temperature sprinklers, unless modified herein the specification. Sprinklers installed in higher ambient temperature areas shall be installed in accordance with NFPA 13.

1. For sprinklers installed directly underneath skylights, install intermediate temperature sprinklers.

2. Elevator Machine Rooms: Install intermediate temperature sprinklers.

3. Emergency Generator Rooms: Install high temperature sprinklers.

B. Sprinkler Guards: Provide mechanical guards as required to prevent mechanical damage in accordance with NFPA 13, and as follows:

1. All sprinklers installed below 7 ft. (2.1 m.)

2. All sprinklers installed in elevator machine rooms.

3. All sprinklers installed in electrical distribution rooms.

C. Corrosion Protection: Provide corrosion-resistant sprinklers in locations where chemicals, moisture, or other corrosive vapors sufficient to cause corrosion of such devices exist, and as follows:

1. Install corrosion-resistant sprinklers in all showers.

2. Install corrosion-resistant sprinklers in all open parking garages

3. Install corrosion-resistant sprinklers where exposed to the exterior.

D. Quick Response Sprinklers:

1. Install in all areas where listed for use and in accordance with NFPA 13.

2. Do not install in elevator machine rooms.

E. Flexible sprinkler fittings shall not be used.

WET-PIPE SPRINKLER SYSTEMS 211313 - 20

3.6 DRAINS

A. Pipe drains to discharge at safe points outside of the building or to sight cones attached to drains of adequate size to readily carry the full flow from each drain under maximum pressure. Do not provide a direct drain connection to sewer system or discharge into sinks. Install drips and drains where necessary and required by NFPA 13.

1. All drain discharge outlets on the outside of the building shall be located no higher than 1 foot (0.3 meters) above grade level.

2. Drains provided as part of floor control valves shall discharge to an express drain located adjacent to the sprinkler riser. Drains shall be of the combination inspector's test/drain type.

3.7 SIGNAGE

A. Securely attach identification signs to control valves, drain valves, and test valves. Locate hydraulic placard information signs at each sectional control valve where there is a zone water flow switch. Where more than one sprinkler zone is provided, signs shall indicate the specific zone served by the valve.

3.8 FIRESTOPPING AND FIREPROOFING

A. Firestop all holes for piping, or other penetrations which pass through floor slabs, fire-rated walls, partitions with fire-rated doors, vertical service shafts, or any fire-rated assemblies in accordance with Division 7, Firestopping. Existing holes through which new piping for this project passes shall be totally firestopped in a manner that restores the fire protection rating of the penetrated wall, floor, ceiling or other structure.

B. [Where structural fireproofing is disturbed, damaged, or destroyed as a result of the sprinkler system installation, the contractor shall be responsible for restoring the fire proofing to the required fire resistance rating in an approved manner. This restoration shall be done in accordance with the UL listing or FM approval of the fireproofing materials, requirements of the building, fire, and life safety codes in effect for the project, and in accordance with Division 7, Applied Fireproofing.]

3.9 SLEEVE INSTALLATION

A. General Requirements: Install sleeves for pipes and tubes passing through penetrations in concrete or masonry walls and floors.

B. Cut sleeves to length for mounting flush with both surfaces unless otherwise indicated by this specification.

C. Install sleeves that are large enough to provide 1/4-inch (6.4-mm) annular clear space between sleeve and pipe. In seismic zones, for pipe 2½ inch (65 mm) and smaller install sleeves that are large enough to provide 1 inch (25 mm) annular clear space between sleeve and pipe, for pipe larger than 2½ (65 mm) inch install sleeves that are large enough to provide 2 inch (50 mm) annular clear space between sleeve and pipe.

WET-PIPE SPRINKLER SYSTEMS 211313 - 21

D. Sleeves in Masonry and Concrete Walls, Floors, and Roofs: Provide hot-dip galvanized steel, ductile-iron, or cast-iron sleeves. Core drilling of masonry and concrete may be provided in lieu of pipe sleeves when cavities in the core-drilled hole are completely grouted smooth.

E. Sleeves in Other Than Masonry and Concrete Walls, Floors, and Roofs: Provide 26 gauge galvanized sheet steel.

F. Escutcheon plates shall be installed where exposed piping penetrates through walls, ceilings and floors.

3.10 FIELD QUALITY CONTROL

A. Tests and Inspections:

1. Hydrostatically test wet-pipe sprinkler system, as required by NFPA 13, in the presence of the GSA Regional Fire Protection Engineer or their designated representative. The Contractor and an authorized representative from each supplier of equipment shall be in attendance at the preliminary test. Test waterflow alarms, tamper switches, and all other devices for smooth and correct operation. Test the waterflow alarms by flowing water through the inspector's test connection. When tests are completed and corrections made, submit signed and dated “Contractor’s Material and Test Certificates” in accordance with NFPA 13, with a request for final inspection and tests.

2. Test and adjust controls. Replace damaged and malfunctioning controls and equipment.

3. Flush, test, and inspect sprinkler systems according to NFPA 13.

4. Energize circuits to electrical equipment and devices.

5. Coordinate with fire-alarm tests. Operate as required.

6. Coordinate with fire-pump tests. Operate as required.

7. Verify that equipment hose threads are same as local fire-department equipment.

B. Final Inspection and Testing: Advise the GSA Regional Fire Protection Engineer when hydrostatic and alarm tests have been completed and all necessary corrections made, so as to permit final inspection and testing. Submit request for testing at least 15 calendar days prior to test date. A final acceptance test WILL NOT BE SCHEDULED until operation and maintenance manuals have been received by the Contracting Officer or designated representative.

1. At the final test, a material and test certificate must be provided in accordance with NFPA

13.

2. Submit up-to-date red-lined shop drawings to the GSA Regional Fire Protection Engineer or designated representative at the final test. These drawings shall be undamaged sets of prints of the shop drawings, with changes from the original drawings marked in red. Up-to-date drawings shall be maintained on site throughout construction.

3. The final test shall be witnessed by GSA Regional Fire Protection Engineer. The

Contractor and an authorized representative from each supplier of equipment shall be in attendance at the final test.

4. Final testing shall include, but is not limited to, full flow testing through both the main drain and the inspector's test connection as well as testing of all waterflow and tamper

WET-PIPE SPRINKLER SYSTEMS 211313 - 22

switches.

5. Provide all equipment, services and labor to properly perform all required tests. The Regional GSA Regional Fire Protection Engineer shall supervise all testing.

C Coordination of Installation:

1. The Contractor shall coordinate this sprinkler system work with other trades to avoid conflicts, as-sure system completion and testing within the project schedule and to assure a quality, workmanlike finished product. [In occupied buildings the Contractor shall coordinate all work with the GSA Property Manager to limit the disruptions to government business and activities. This may mean altered scheduling, after hours work, and/or sequencing construction activities to avoid disruptions to occupants of the building.]

2. Disruptions to existing automatic sprinkler systems shall be kept to a minimum or avoided. Sprinkler systems outside of the construction project shall be kept in service at all times in a method approved by the GSA Regional Fire Protection Engineer.

3. Delineate phasing of construction to ensure that installations of new systems are expedited, and ex-isting systems are kept in service until the replacement system is operational.

3.11 CLEANING AND PAINTING

A. Clean dirt and debris from sprinklers.

B. Remove and replace sprinklers with paint other than factory finish.

C. Paint sprinkler pipe as required by Division 9, Painting.

END OF SECTION 211313